Airpedia

Airpedia is the Pocket Planes tab for showing all of the airplanes that are in the game. You can press the desired airplane and learn the capacity, speed, range, weight, and size/class.

If you own the aircraft and click on it, you can learn how many flights it has been on for you and the amount of miles it has flown for you. This is an excellent source for getting information about a plane.